Automatic pump.



W. C. CLARK.

AUTOMATIC PUMP.

APPLICATION FILED SEPT. s, 1912.

1,077,597, Patented N0v.4,1913.

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amozwtoz 14 C. C 2 a 771 coLuMBl. PLANOORAFH CO-,WASHXNGTON, D. c.

W. G. CLARK.

AUTOMATIC PUMP.

1 APPLICATION FILED 9,211.3, 1912.

1,077,597, Patented Nov. 4, 1913.

2 SHEETS-SHBET 2.

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QOLUMBIA PLANOGRAPH (20.. WASHINGTON. D. c.

WALTER C. CLARK, OF CANBY, OREGON.

AUTOMATIC PUMP.

Specification of Letters Patent.

Patented Nov. a,- 1913.

Application filed September 3, 1912. Serial No. 718,351.

To all whom it may concern Be it known that I, WVALTER C. CLARK, citizenof Great Britain, residing at Canby, in the county of Olackamas andState of Oregon, have invented certain new and useful Improvements inAutomatic Pumps, of which the following is a specification.

My invention relates to pumping devices and particularly to devices ofthis character operated by the flow of water.

The main object of the invention is the provision of a pumping device orpumping motor for use where the small quantity of water at command orthe limited fall or head of water precludes the employmentof a hydraulicram.

A further object of the invention is the provision of a pumping motor orpump actuating device which will work with a very small water supply andis effective with a very low head.

A further object is to provide in a construction of this character, anextremely simple mechanism which is capable of being operated eitherwith waste water or with a certain quantity of the water designed to beacted upon by the pump.

A further object is the provision ofa structure of this character inwhich means is used for regulating the supply of water to the motor inproportion to the work performed.

A further object is to provide a bucket of peculiar construction adaptedto be tipped upon its descent and thereby discharge the water containedwithin the bucket, an object being in this connection to provide aconstruction which will quickly and completely empty the bucket andthereby greatly add to the efficiency of the machine.

My invention is illustrated in the accompanying drawings wherein:

Figure 1 is a side elevation of an apparatus constructed in accordancewith my invention. Fig. 2 is a plan view thereof. Fig. 3 is a sideelevation of a modified form of the apparatus shown in Fig. 1. Fig. atis a detail view of one of the buckets. Fig. 5 is a detail sectionalview of the casing or box into which the inlet pipe discharges.

Referring to these drawings, 2 designates a framework of any suitableconstruction shown as embodying uprights 3, a base beam or beams 4,transverse beams 5 and 6 and a vertical beam 7. Mounted upon thevertical beam 7 in anysuitable manner is a walking beam or lever 8carrying at one end a susstable equilibrium between the links 10. The Vbucket is triangular in form; and is pivoted below its center ofgravity- One side of the bucket is formed with a stop lug l3 disposed toone side of the vertical center of the bucket and adapted to contactwith one of the links 10 and limit the movement of the bucket to ahorizontal position until tipped. For the purpose of tipping the bucketwhen it has descended to its lowest point, I provide an upwardlyprojecting standard 11 and a chain 14 which extends to the upper marginof the-bucket.

Mounted upon the base 4 in any suitable manner is a pump 15 of anydesired construction but preferably, an open top pump with inverted cupleathers. The type of pump shown is a single acting pump and I do notwish to be limited to the particular form of pump as this specific formis not any part of my present invention. The pump is connected to asupply pipe 16 and extending from the pump is a discharge pipe 17. Thesupply pipe 16 is shown as extending to and receiving water from a pipe18 which is relatively larger in diameter than the pipe 16. This pipe 18extends beyond the junction 19 and extends into a box or casing 20 whichhas about the same capacity as the bucket 12. This box or casing has adownwardly extending discharge nozzle 21, the passage through which, iscontrolled by means of a flap valve 22 which may be made in any suitablemanner. The piston of the pump is designated 23 and is connected to thewalking beam 8 intermediate of thepivotal center of the walking beam andthe con-' nection of the beam to the weight 9. For the purpose ofoperating the valve 22, 1 provide a pivoted rod 2 1 pivotally supportedfrom the beam 6 and connected by achain 25 to the cut-off valve and by achain 26 at its other end to the walking beam 8 intermediate the pointof attachment of the rod 23 and the pivotal point of the walking beam.The operation of this form of the invention will be obvious. In itsinitial position, the bucket 12 is disposed as shown in dotted linesimmediately below the nozzle 21. Water from the supply pipe 18 is disthestandard 13, the bucket will tip discharging water. WVith the peculiarform of bucket shown, the bucket willtip very quickly once it has beenoverloalanced and all of the water will bedischarged from the bucket. Ofcourse the bucket is prevented from tipping too far by reason of thechain 14 which acts thus both to initially tip the bucket from itsoverturned position to its horizontal 'or'receiving position, and totip-the bucket from its horizontal or receiving position to itsdischarging position and to limit its rotative movement; With the bucketin the posit-ion as shown by dotted lines in Fig. 1, water will beadmitted thereto until the bucket begins to move downward by reason ofthe weight of the water. I The weight of the contents of the bucketholding it in a horizontal position untilthe bucket has moved to aposition where the chainl i becomes taut. WVhen this occurs, the chainexerts sufl'iclent hfting force'upon the rear slde of i the bucket toimpart to the bucket a slight tipping movement, whereupon the bucket,

since it is mounted in unstable equilibrium, will completely dischargeits contents. As

soon as the bucket is filled and commences to lower, the cut-off valvewill be operated to cut ofl the supply of water flowing to the bucket,but as soon as water has been discharged and the bucket end of the beam8 has nearly reached its maximum height, the

a chain 26 will be drawn taut and the lever 24 operated to shift thecut-off valve to again permit theflow of water to the bucket.

In the construction shown in Fig. 1, the weight 9 is shown aspositivelyoperating the pump while the bucket is used to counterbalance the weight9. It will be obvious however, that the pump might be connected to thebeam 8 between the pivotal center of the beam and the links 10, thusproviding for an operation of the pump in conjunction with the descentof the bucket instead of in conjunction with the descent of the weight.

In Fig. 3 I showanother form of my invention. In this illustration Iprovide two pumps acting alternately and also provide twobuckets, onewhen'filled counterweighting the other empty bucket. In this figure, 27designates a walking beam having links 28 at opposite ends. Pivotallymounted between these links are the buckets 29 constructed in preciselythe same manner as heretofore described. There are two pumps 30 used,each connectedto a supply pipe 31 the pumps are connected by piston rods33 to the walking beam 27, one on each side of the pivotal axis of thewalking beam so that when the walking beam is oscillated, one of thepistons will be depressed and the other. raised. A supply pipe Set isprovided with two nozzles 35, each'nozzle being disposed above thecorresponding bucket 29. A barrel 36 extends upward from each nozzle anddisposed in each barrel is a cut-ofi valve such as previously described.

Mounted upon the superstructure or framework are the rods or levers 38,each pivoted at its middle and each connected at its outerend by meansof a chain 89 to the corresponding cut-off valve. The inner ends of thelevers 38'o-verlap each other and the levers are connected at theirinner ends, each by means of a chain L0 to the walking beam, one on eachside of the, axis of the beam. Each bucket is connected at its inner endby means of a chain 4:1- to any suitable support or standard, in thiscase the upper end of the pump barrel 30. The operation of this form ofmy invention is practically the same as that heretofore described. Asone bucket and to a discharge pipe 32. The pistons of it fills, itdescends, raising the other bucket into position to be filled. When thedescending bucket has reached its lowest position, it is tipped by meansof the chain 41 a and discharges its contents. Meanwhile, the

other bucket is filling and as soon as filled; raises the first namedbucket to its original L 5 position. This causes an oscillation of thewalking beam 27 and an alternate actuation of the piston rods of thepumps.

it will be obvious that my construction is very simple, easily operatedand that it may be run at very small expense.

While I have illustrated the buckets as being filled from the mainsupply pipeor pipes, it is to be understood that the buckets might befilled from supply pipes indepencb ent of the pipes supplying the pumpor pumps, and that thus contaminated water might be used if desired as ameans for op-y.

crating the pumping mechanism to elevate: a

pure water. It will be obvious also that the pumping mechanism isentirely automatic in its act-ion and that it requires no care or 1attendance. The mechanism may be used for irrigating purposes orforpumping wa-w ter into tanks or any situation where a pump is desired. ae

end of the inlet pipe, this box having a ca 1 pacity about the same asthat of the bucket,

is to permit the discharge from the inlet pipe to be continuous, the boXbeing of the size stated in order that it may not overflow when the pumpis operated at normal speed.

V The object of providing a boX'20 at the r connected to the piston,links suspended from one end of the beam, a bucket pivoted between saidlinks in a position of unstable equilibrium, a stop on the bucketlimiting the rotation of the bucket in one direction, a flexibleconnection fixedly attached at a point to one side of the path ofmovement of the bucket and between the termini of said path, the upperend of the flexible connection being attached to the side of the bucketopposite the stop, means for counterweighting the other end of the beamto cause the bucket end of the beam to lift when the contents of thebucket has been discharged, and means for discharging liquid into thebucket, said flexible connection when the bucket has reached the lowestterminus of its movement causing an initial tipping of the bucket topermit the discharge of its contents.

2. A pump motor including a supporting frame, a beam supported above thepump, buckets suspended in unstable equilibrium from opposite ends ofthe beam, discharge,

pipes discharging into each of the buckets, means for tipping thebuckets to a horizontal receiving position when the buckets have reachedtheir uppermost positions, said means causing the tilting of each bucketwhen it has reached its lowest position to discharge the contentsthereof, cut-ofi' valves, one for each discharge pipe, and a pair oflevers each pivoted intermediate its ends, each lever being connected atits outer end to one of the cut-off valves, the inner end of the leverbeing connected to the beam beyond the pivotal point thereof.

3. The combination with a pump, of a beam pivotally supported above thepump, a rod connecting the pump piston to the beam, a tipping bucketcarried upon one end of the beam in unstable equilibrium, acounterweight operatively engaging the other end of the beam to lift thebucket end of the beam when the contents of the bucket is discharged,means for holding the bucket in a horizontal receiving position untilthe bucket has reached the lower terminus of its movement, said meanscausing the bucket to tip when the bucket has reached the lower terminusof its movement, a discharge pipe disposed above the bucket, the casinginto which said pipe discharges having a dis charge opening, the casinghaving a capacity approximately equal to that of the bucket, a cut-offvalve in the casing, a beam pivotally mounted above the first named beamand flexibly connected to the cut off valve, the other end of the lastnamed beam being flexibly connected to the first named beam; 4. Thecombination with a pump, of a pivotally supported beam, a piston for thepump operatively connected to the beam, links pivoted to the end of thebeam and depending therefrom, a bucket pivoted between said links in aposition of unstable equilibrium, a stop projecting from the bucket andengaging with the links when the buckets are in a horizontal position, achain support disposed in a plane between the path of movement of thebucket and the axis of thebeam, a flexible connection extending fromsaid chain support to the inner end of the bucket and acting to hold thebucket in a horizontal position when the bucket is raised but causingsaid bucket to initially tip when the bucket is lowered, a counterweightoperatively engaging the beam opposite the end of the bucket to lift thebucket end of the beam when the contents of the bucket is discharged, adischarge pipe disposed above the bucket, a casing into which said pipedischarges and having a discharge opening, said casing having a capacityapproximately equal to that of the bucket, a cut-ofl valve in saidcasing, a beam pivotally mounted above the first named beam and flexiblyconnected at one end to the cut-off valve, the other end of the lastnamed beam being flexibly connected to the first named beam.

In testimony whereof I affix my signature Witnesses:

F. G. HAVEMANN, PERRY O. STACY. I

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

